FRACTIONAL Series 33 Ap Series Ae Ae DC • in 33CR Vc Fractional Hardness Ae x DC Ap x DC (sfm) 1/8 1/4 3/8 1/2 5/8 3/4 1 550 RPM 16808 8404 5603 4202 3362 2801 2101 Profile ≤ 0.5 ≤ 1.5 Fz 0.0005 0.0012 0.0023 0.0031 0.0039 0.0040 0.0043 CARBON STEELS (440-660) 1018, 1040, 1080, ≤ 275 Bhn Feed (ipm) 25.2 30.3 38.7 39.1 39.3 33.6 27.1 1090, 10L50, 1140, or 1212, 12L15, 1525, ≤ 28 HRc 440 RPM 13446 6723 4482 3362 2689 2241 1681 1536 Slot 1 ≤1 Fz 0.0005 0.0012 0.0023 0.0031 0.0039 0.0040 0.0043 (352-528) Feed (ipm) 20.2 24.2 30.9 31.3 31.5 26.9 21.7 P 315 RPM 9626 4813 3209 2407 1925 1604 1203 Profile ≤ 0.5 ≤ 1.5 Fz 0.0004 0.0009 0.0017 0.0023 0.0029 0.0030 0.0032 ALLOY STEELS (252-378) ≤ 375 Bhn Feed (ipm) 11.6 13.0 16.4 16.6 16.7 14.4 11.6 4140, 4150, 4320, or 5120, 5150, 8630, 250 RPM 7640 3820 2547 1910 1528 1273 955 ≤ 40 HRc 86L20, 50100 Slot 1 ≤1 Fz 0.0004 0.0009 0.0017 0.0023 0.0029 0.0030 0.0032 (200-300) Feed (ipm) 9.2 10.3 13.0 13.2 13.3 11.5 9.2 490 RPM 14974 7487 4991 3744 2995 2496 1872 Profile ≤ 0.5 ≤ 1.5 Fz 0.0004 0.0010 0.0019 0.0025 0.0031 0.0032 0.0035 STAINLESS STEELS (392-588) ≤ 275 Bhn Feed (ipm) 17.1 22.5 28.5 28.1 27.9 24.0 19.7 (FREE MACHINING) or 303, 416, 420F, 390 RPM 11918 5959 3973 2980 2384 1986 1490 ≤ 28 HRc 430F, 440F Slot 1 ≤1 Fz 0.0004 0.0010 0.0019 0.0025 0.0031 0.0032 0.0035 (312-468) Feed (ipm) 13.6 17.9 22.6 22.3 22.2 19.1 15.6 340 RPM 10390 5195 3463 2598 2078 1732 1299 Profile ≤ 0.5 ≤ 1.5 Fz 0.0003 0.0008 0.0015 0.0020 0.0025 0.0026 0.0028 (272-408) STAINLESS STEELS ≤ 275 Bhn Feed (ipm) 9.4 12.5 15.6 15.6 15.6 13.5 10.9 M (DIFFICULT) or 304, 304L, 316, 316L ≤ 28 HRc 270 RPM 8251 4126 2750 2063 1650 1375 1031 Slot 1 ≤1 Fz 0.0003 0.0008 0.0015 0.0020 0.0025 0.0026 0.0028 (216-324) Feed (ipm) 7.4 9.9 12.4 12.4 12.4 10.7 8.7 310 RPM 9474 4737 3158 2368 1895 1579 1184 Profile ≤ 0.5 ≤ 1.5 Fz 0.0003 0.0008 0.0015 0.0020 0.0025 0.0026 0.0028 STAINLESS STEELS (248-372) ≤ 325 Bhn Feed (ipm) 8.5 11.4 14.2 14.2 14.2 12.3 9.9 (PH) or 13-8 PH, 15-5 PH, 250 RPM 7640 3820 2547 1910 1528 1273 955 ≤ 35 HRc 17-4 PH, Custom 450 Slot 1 ≤1 Fz 0.0003 0.0008 0.0015 0.0020 0.0025 0.0026 0.0028 (200-300) Feed (ipm) 6.9 9.2 11.5 11.5 11.5 9.9 8.0 445 RPM 13599 6800 4533 3400 2720 2267 1700 Profile ≤ 0.5 ≤ 1.5 Fz 0.0004 0.0011 0.0021 0.0028 0.0035 0.0036 0.0039 CAST IRONS (356-534) (LOW & MEDIUM ≤ 220 Bhn Feed (ipm) 14.3 22.4 28.6 28.6 28.6 24.5 19.9 K ALLOY) or Gray, Malleable, ≤ 19 HRc 355 RPM 10849 5424 3616 2712 2170 1808 1356 Ductile Slot 1 ≤1 Fz 0.0004 0.0011 0.0021 0.0028 0.0035 0.0036 0.0039 (284-426) Feed (ipm) 11.4 17.9 22.8 22.8 22.8 19.5 15.9 continued on next page 98 END MILLS END MILLS www.kyocera-sgstool.com